434 lines
14 KiB
C
434 lines
14 KiB
C
/*
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* Misc useful os-independent macros and functions.
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*
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* Copyright 2006, Broadcom Corporation
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* All Rights Reserved.
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*
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* THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
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* KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
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* SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
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* $Id: bcmutils.h,v 1.1.1.16 2006/04/08 06:13:39 honor Exp $
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*/
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#ifndef _bcmutils_h_
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#define _bcmutils_h_
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/* ** driver-only section ** */
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#ifdef BCMDRIVER
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#define _BCM_U 0x01 /* upper */
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#define _BCM_L 0x02 /* lower */
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#define _BCM_D 0x04 /* digit */
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#define _BCM_C 0x08 /* cntrl */
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#define _BCM_P 0x10 /* punct */
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#define _BCM_S 0x20 /* white space (space/lf/tab) */
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#define _BCM_X 0x40 /* hex digit */
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#define _BCM_SP 0x80 /* hard space (0x20) */
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#define GPIO_PIN_NOTDEFINED 0x20 /* Pin not defined */
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extern unsigned char bcm_ctype[];
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#define bcm_ismask(x) (bcm_ctype[(int)(unsigned char)(x)])
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#define bcm_isalnum(c) ((bcm_ismask(c)&(_BCM_U|_BCM_L|_BCM_D)) != 0)
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#define bcm_isalpha(c) ((bcm_ismask(c)&(_BCM_U|_BCM_L)) != 0)
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#define bcm_iscntrl(c) ((bcm_ismask(c)&(_BCM_C)) != 0)
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#define bcm_isdigit(c) ((bcm_ismask(c)&(_BCM_D)) != 0)
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#define bcm_isgraph(c) ((bcm_ismask(c)&(_BCM_P|_BCM_U|_BCM_L|_BCM_D)) != 0)
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#define bcm_islower(c) ((bcm_ismask(c)&(_BCM_L)) != 0)
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#define bcm_isprint(c) ((bcm_ismask(c)&(_BCM_P|_BCM_U|_BCM_L|_BCM_D|_BCM_SP)) != 0)
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#define bcm_ispunct(c) ((bcm_ismask(c)&(_BCM_P)) != 0)
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#define bcm_isspace(c) ((bcm_ismask(c)&(_BCM_S)) != 0)
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#define bcm_isupper(c) ((bcm_ismask(c)&(_BCM_U)) != 0)
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#define bcm_isxdigit(c) ((bcm_ismask(c)&(_BCM_D|_BCM_X)) != 0)
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/*
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* Spin at most 'us' microseconds while 'exp' is true.
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* Caller should explicitly test 'exp' when this completes
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* and take appropriate error action if 'exp' is still true.
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*/
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#define SPINWAIT(exp, us) { \
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uint countdown = (us) + 9; \
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while ((exp) && (countdown >= 10)) {\
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OSL_DELAY(10); \
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countdown -= 10; \
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} \
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}
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struct ether_addr {
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uint8 octet[6];
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} __attribute__((packed));
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/* string */
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extern uchar bcm_toupper(uchar c);
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extern ulong bcm_strtoul(char *cp, char **endp, uint base);
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extern char *bcmstrstr(char *haystack, char *needle);
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extern char *bcmstrcat(char *dest, const char *src);
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extern ulong wchar2ascii(char *abuf, ushort *wbuf, ushort wbuflen, ulong abuflen);
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/* ethernet address */
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extern char *bcm_ether_ntoa(struct ether_addr *ea, char *buf);
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/* variable access */
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extern char *getvar(char *vars, char *name);
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extern int getintvar(char *vars, char *name);
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extern uint getgpiopin(char *vars, char *pin_name, uint def_pin);
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#ifdef BCMPERFSTATS
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extern void bcm_perf_enable(void);
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extern void bcmstats(char *fmt);
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extern void bcmlog(char *fmt, uint a1, uint a2);
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extern void bcmdumplog(char *buf, int size);
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extern int bcmdumplogent(char *buf, uint idx);
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#else
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#define bcm_perf_enable()
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#define bcmstats(fmt)
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#define bcmlog(fmt, a1, a2)
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#define bcmdumplog(buf, size) *buf = '\0'
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#define bcmdumplogent(buf, idx) -1
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#endif /* BCMPERFSTATS */
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extern char *bcm_nvram_vars(uint *length);
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extern int bcm_nvram_cache(void *sbh);
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/* Support for sharing code across in-driver iovar implementations.
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* The intent is that a driver use this structure to map iovar names
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* to its (private) iovar identifiers, and the lookup function to
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* find the entry. Macros are provided to map ids and get/set actions
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* into a single number space for a switch statement.
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*/
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/* iovar structure */
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typedef struct bcm_iovar {
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const char *name; /* name for lookup and display */
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uint16 varid; /* id for switch */
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uint16 flags; /* driver-specific flag bits */
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uint16 type; /* base type of argument */
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uint16 minlen; /* min length for buffer vars */
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} bcm_iovar_t;
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/* varid definitions are per-driver, may use these get/set bits */
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/* IOVar action bits for id mapping */
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#define IOV_GET 0 /* Get an iovar */
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#define IOV_SET 1 /* Set an iovar */
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/* Varid to actionid mapping */
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#define IOV_GVAL(id) ((id)*2)
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#define IOV_SVAL(id) (((id)*2)+IOV_SET)
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#define IOV_ISSET(actionid) ((actionid & IOV_SET) == IOV_SET)
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/* flags are per-driver based on driver attributes */
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/* Base type definitions */
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#define IOVT_VOID 0 /* no value (implictly set only) */
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#define IOVT_BOOL 1 /* any value ok (zero/nonzero) */
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#define IOVT_INT8 2 /* integer values are range-checked */
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#define IOVT_UINT8 3 /* unsigned int 8 bits */
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#define IOVT_INT16 4 /* int 16 bits */
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#define IOVT_UINT16 5 /* unsigned int 16 bits */
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#define IOVT_INT32 6 /* int 32 bits */
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#define IOVT_UINT32 7 /* unsigned int 32 bits */
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#define IOVT_BUFFER 8 /* buffer is size-checked as per minlen */
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extern const bcm_iovar_t *bcm_iovar_lookup(const bcm_iovar_t *table, const char *name);
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extern int bcm_iovar_lencheck(const bcm_iovar_t *table, void *arg, int len, bool set);
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#endif /* #ifdef BCMDRIVER */
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/* ** driver/apps-shared section ** */
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#define BCME_STRLEN 64 /* Max string length for BCM errors */
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#define VALID_BCMERROR(e) ((e <= 0) && (e >= BCME_LAST))
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/*
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* error codes could be added but the defined ones shouldn't be changed/deleted
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* these error codes are exposed to the user code
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* when ever a new error code is added to this list
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* please update errorstring table with the related error string and
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* update osl files with os specific errorcode map
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*/
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#define BCME_OK 0 /* Success */
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#define BCME_ERROR -1 /* Error generic */
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#define BCME_BADARG -2 /* Bad Argument */
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#define BCME_BADOPTION -3 /* Bad option */
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#define BCME_NOTUP -4 /* Not up */
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#define BCME_NOTDOWN -5 /* Not down */
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#define BCME_NOTAP -6 /* Not AP */
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#define BCME_NOTSTA -7 /* Not STA */
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#define BCME_BADKEYIDX -8 /* BAD Key Index */
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#define BCME_RADIOOFF -9 /* Radio Off */
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#define BCME_NOTBANDLOCKED -10 /* Not band locked */
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#define BCME_NOCLK -11 /* No Clock */
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#define BCME_BADRATESET -12 /* BAD Rate valueset */
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#define BCME_BADBAND -13 /* BAD Band */
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#define BCME_BUFTOOSHORT -14 /* Buffer too short */
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#define BCME_BUFTOOLONG -15 /* Buffer too long */
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#define BCME_BUSY -16 /* Busy */
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#define BCME_NOTASSOCIATED -17 /* Not Associated */
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#define BCME_BADSSIDLEN -18 /* Bad SSID len */
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#define BCME_OUTOFRANGECHAN -19 /* Out of Range Channel */
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#define BCME_BADCHAN -20 /* Bad Channel */
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#define BCME_BADADDR -21 /* Bad Address */
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#define BCME_NORESOURCE -22 /* Not Enough Resources */
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#define BCME_UNSUPPORTED -23 /* Unsupported */
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#define BCME_BADLEN -24 /* Bad length */
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#define BCME_NOTREADY -25 /* Not Ready */
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#define BCME_EPERM -26 /* Not Permitted */
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#define BCME_NOMEM -27 /* No Memory */
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#define BCME_ASSOCIATED -28 /* Associated */
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#define BCME_RANGE -29 /* Not In Range */
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#define BCME_NOTFOUND -30 /* Not Found */
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#define BCME_WME_NOT_ENABLED -31 /* WME Not Enabled */
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#define BCME_TSPEC_NOTFOUND -32 /* TSPEC Not Found */
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#define BCME_ACM_NOTSUPPORTED -33 /* ACM Not Supported */
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#define BCME_NOT_WME_ASSOCIATION -34 /* Not WME Association */
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#define BCME_SDIO_ERROR -35 /* SDIO Bus Error */
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#define BCME_DONGLE_DOWN -36 /* Dongle Not Accessible */
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#define BCME_LAST BCME_DONGLE_DOWN
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/* These are collection of BCME Error strings */
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#define BCMERRSTRINGTABLE { \
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"OK", \
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"Undefined error", \
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"Bad Argument", \
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"Bad Option", \
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"Not up", \
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"Not down", \
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"Not AP", \
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"Not STA", \
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"Bad Key Index", \
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"Radio Off", \
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"Not band locked", \
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"No clock", \
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"Bad Rate valueset", \
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"Bad Band", \
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"Buffer too short", \
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"Buffer too long", \
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"Busy", \
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"Not Associated", \
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"Bad SSID len", \
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"Out of Range Channel", \
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"Bad Channel", \
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"Bad Address", \
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"Not Enough Resources", \
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"Unsupported", \
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"Bad length", \
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"Not Ready", \
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"Not Permitted", \
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"No Memory", \
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"Associated", \
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"Not In Range", \
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"Not Found", \
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"WME Not Enabled", \
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"TSPEC Not Found", \
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"ACM Not Supported", \
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"Not WME Association", \
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"SDIO Bus Error", \
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"Dongle Not Accessible" \
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}
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#ifndef ABS
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#define ABS(a) (((a) < 0)?-(a):(a))
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#endif /* ABS */
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#ifndef MIN
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#define MIN(a, b) (((a) < (b))?(a):(b))
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#endif /* MIN */
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#ifndef MAX
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#define MAX(a, b) (((a) > (b))?(a):(b))
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#endif /* MAX */
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#define CEIL(x, y) (((x) + ((y)-1)) / (y))
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#define ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y))
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#define ISALIGNED(a, x) (((a) & ((x)-1)) == 0)
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#define ISPOWEROF2(x) ((((x)-1)&(x)) == 0)
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#define VALID_MASK(mask) !((mask) & ((mask) + 1))
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#define OFFSETOF(type, member) ((uint)(uintptr)&((type *)0)->member)
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#define ARRAYSIZE(a) (sizeof(a)/sizeof(a[0]))
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/* bit map related macros */
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#ifndef setbit
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#ifndef NBBY /* the BSD family defines NBBY */
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#define NBBY 8 /* 8 bits per byte */
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#endif /* #ifndef NBBY */
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#define setbit(a, i) (((uint8 *)a)[(i)/NBBY] |= 1<<((i)%NBBY))
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#define clrbit(a, i) (((uint8 *)a)[(i)/NBBY] &= ~(1<<((i)%NBBY)))
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#define isset(a, i) (((uint8 *)a)[(i)/NBBY] & (1<<((i)%NBBY)))
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#define isclr(a, i) ((((uint8 *)a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0)
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#endif /* setbit */
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#define NBITS(type) (sizeof(type) * 8)
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#define NBITVAL(nbits) (1 << (nbits))
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#define MAXBITVAL(nbits) ((1 << (nbits)) - 1)
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#define NBITMASK(nbits) MAXBITVAL(nbits)
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#define MAXNBVAL(nbyte) MAXBITVAL((nbyte) * 8)
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/* basic mux operation - can be optimized on several architectures */
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#define MUX(pred, true, false) ((pred) ? (true) : (false))
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/* modulo inc/dec - assumes x E [0, bound - 1] */
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#define MODDEC(x, bound) MUX((x) == 0, (bound) - 1, (x) - 1)
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#define MODINC(x, bound) MUX((x) == (bound) - 1, 0, (x) + 1)
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/* modulo inc/dec, bound = 2^k */
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#define MODDEC_POW2(x, bound) (((x) - 1) & ((bound) - 1))
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#define MODINC_POW2(x, bound) (((x) + 1) & ((bound) - 1))
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/* modulo add/sub - assumes x, y E [0, bound - 1] */
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#define MODADD(x, y, bound) \
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MUX((x) + (y) >= (bound), (x) + (y) - (bound), (x) + (y))
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#define MODSUB(x, y, bound) \
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MUX(((int)(x)) - ((int)(y)) < 0, (x) - (y) + (bound), (x) - (y))
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/* module add/sub, bound = 2^k */
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#define MODADD_POW2(x, y, bound) (((x) + (y)) & ((bound) - 1))
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#define MODSUB_POW2(x, y, bound) (((x) - (y)) & ((bound) - 1))
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/* crc defines */
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#define CRC8_INIT_VALUE 0xff /* Initial CRC8 checksum value */
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#define CRC8_GOOD_VALUE 0x9f /* Good final CRC8 checksum value */
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#define CRC16_INIT_VALUE 0xffff /* Initial CRC16 checksum value */
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#define CRC16_GOOD_VALUE 0xf0b8 /* Good final CRC16 checksum value */
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#define CRC32_INIT_VALUE 0xffffffff /* Initial CRC32 checksum value */
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#define CRC32_GOOD_VALUE 0xdebb20e3 /* Good final CRC32 checksum value */
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/* bcm_format_flags() bit description structure */
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typedef struct bcm_bit_desc {
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uint32 bit;
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char* name;
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} bcm_bit_desc_t;
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/* tag_ID/length/value_buffer tuple */
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typedef struct bcm_tlv {
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uint8 id;
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uint8 len;
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uint8 data[1];
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} bcm_tlv_t;
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/* Check that bcm_tlv_t fits into the given buflen */
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#define bcm_valid_tlv(elt, buflen) ((buflen) >= 2 && (int)(buflen) >= (int)(2 + (elt)->len))
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/* buffer length for ethernet address from bcm_ether_ntoa() */
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#define ETHER_ADDR_STR_LEN 18 /* 18-bytes of Ethernet address buffer length */
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/* unaligned load and store macros */
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#ifdef IL_BIGENDIAN
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static INLINE uint32
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load32_ua(uint8 *a)
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{
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return ((a[0] << 24) | (a[1] << 16) | (a[2] << 8) | a[3]);
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}
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static INLINE void
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store32_ua(uint8 *a, uint32 v)
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{
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a[0] = (v >> 24) & 0xff;
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a[1] = (v >> 16) & 0xff;
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a[2] = (v >> 8) & 0xff;
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a[3] = v & 0xff;
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}
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static INLINE uint16
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load16_ua(uint8 *a)
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{
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return ((a[0] << 8) | a[1]);
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}
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static INLINE void
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store16_ua(uint8 *a, uint16 v)
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{
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a[0] = (v >> 8) & 0xff;
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a[1] = v & 0xff;
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}
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#else
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static INLINE uint32
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load32_ua(uint8 *a)
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{
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return ((a[3] << 24) | (a[2] << 16) | (a[1] << 8) | a[0]);
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}
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static INLINE void
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store32_ua(uint8 *a, uint32 v)
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{
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a[3] = (v >> 24) & 0xff;
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a[2] = (v >> 16) & 0xff;
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a[1] = (v >> 8) & 0xff;
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a[0] = v & 0xff;
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}
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static INLINE uint16
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load16_ua(uint8 *a)
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{
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return ((a[1] << 8) | a[0]);
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}
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static INLINE void
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store16_ua(uint8 *a, uint16 v)
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{
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a[1] = (v >> 8) & 0xff;
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a[0] = v & 0xff;
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}
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#endif /* IL_BIGENDIAN */
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/* externs */
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/* crc */
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extern uint8 hndcrc8(uint8 *p, uint nbytes, uint8 crc);
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extern uint16 hndcrc16(uint8 *p, uint nbytes, uint16 crc);
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extern uint32 hndcrc32(uint8 *p, uint nbytes, uint32 crc);
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/* format/print */
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extern void printfbig(char *buf);
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/* IE parsing */
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extern bcm_tlv_t *bcm_next_tlv(bcm_tlv_t *elt, int *buflen);
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extern bcm_tlv_t *bcm_parse_tlvs(void *buf, int buflen, uint key);
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extern bcm_tlv_t *bcm_parse_ordered_tlvs(void *buf, int buflen, uint key);
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/* bcmerror */
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extern const char *bcmerrorstr(int bcmerror);
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/* multi-bool data type: set of bools, mbool is true if any is set */
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typedef uint32 mbool;
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#define mboolset(mb, bit) (mb |= bit) /* set one bool */
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#define mboolclr(mb, bit) (mb &= ~bit) /* clear one bool */
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#define mboolisset(mb, bit) ((mb & bit) != 0) /* TRUE if one bool is set */
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#define mboolmaskset(mb, mask, val) ((mb) = (((mb) & ~(mask)) | (val)))
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/* power conversion */
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extern uint16 bcm_qdbm_to_mw(uint8 qdbm);
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extern uint8 bcm_mw_to_qdbm(uint16 mw);
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/* generic datastruct to help dump routines */
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struct fielddesc {
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char *nameandfmt;
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uint32 offset;
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uint32 len;
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};
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/* Buffer structure for collecting string-formatted data
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* using bcm_bprintf() API.
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* Use bcm_binit() to initialize before use
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*/
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struct bcmstrbuf
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{
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char *buf; /* pointer to current position in origbuf */
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uint size; /* current (residual) size in bytes */
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char *origbuf; /* unmodified pointer to orignal buffer */
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uint origsize; /* unmodified orignal buffer size in bytes */
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};
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extern void bcm_binit(struct bcmstrbuf *b, char *buf, uint size);
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extern int bcm_bprintf(struct bcmstrbuf *b, const char *fmt, ...);
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typedef uint32 (*readreg_rtn)(void *arg0, void *arg1, uint32 offset);
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extern uint bcmdumpfields(readreg_rtn func_ptr, void *arg0, void *arg1, struct fielddesc *str,
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char *buf, uint32 bufsize);
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extern uint bcm_mkiovar(char *name, char *data, uint datalen, char *buf, uint len);
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extern uint bcm_bitcount(uint8 *bitmap, uint bytelength);
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#endif /* _bcmutils_h_ */
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